Description
Angular is a development platform for building mobile and desktop web applications using TypeScript/JavaScript and other languages. Prior to 22.0.1, 21.2.17, and 20.3.25, an information disclosure vulnerability exists in the @angular/service-worker package of the Angular framework. When the Service Worker fetches assets, it preserves metadata (such as headers) from the original request. However, on cross-origin redirects, the Service Worker fails to strip sensitive headers, violating the Fetch redirect algorithm. This allows a remote attacker to obtain sensitive credentials (e.g., Authorization tokens, Proxy-Authorization credentials, or session cookies) by triggering a cross-origin redirect to an untrusted external origin. This vulnerability is fixed in 22.0.1, 21.2.17, and 20.3.25.
CVSS breakdown
Affected products
- angular / angular>= 22.0.0-next.0 < 22.0.1 – >= 22.0.0-next.0 < 22.0.1
- angular / angular>= 21.0.0-next.0 < 21.2.17 – >= 21.0.0-next.0 < 21.2.17
- angular / angular>= 20.0.0-next.0 < 20.3.25 – >= 20.0.0-next.0 < 20.3.25
- angular / angular<= 19.2.25 – <= 19.2.25